Study and analysis of mechanical and viscoelasticbehavior in flexure of laminated composites

Type : Publication
Auteur(s) :  Rafik HALIMI, Boudjema Bezzazi, Ali BADIDI BOUDA, M’hamed Djelloul Abbou, Oussama Mimouni
Année :  2016
Domaine : Sciences des matériaux
Revue : International Journal of Material Research
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  Composite laminate, Dynamic mechanical analysis, Fiber/matrice interface, glass transition temperature

Résumé : 

In the present paper, seven laminated composites were thesubject of an experimental study to determine their mechanical and viscoelastic properties by means of dynamic mechanical analysis in a bending configuration. The influenceof the frequency, fiber type and fiber orientation on dynamic mechanical properties of different system composites were investigated. Carbon/epoxy laminates exhibit agreat stiffness when fibers are oriented along the axis ofthe clamps, and the maximum modulus was reported forunidirectional carbon/epoxy laminate [08 plies] with56.4 GPa. The glass transition temperature was found to decrease with the incorporation of fibers and increase with increased frequency. For the Kevlar/epoxy laminate, an increase of 12.5 8C in glass transition temperature wasobserved. This is related to a better interfacial adhesion between epoxy matrix and Kevlar fibers